Overview
The L6574D013TR is a single-channel ballast controller manufactured by STMicroelectronics. This device is designed for applications such as LED drivers, particularly for high-power LED emergency lighting systems. It operates from a single 5V to 40V supply and features an optimized driver stage with current sensing for accurate current regulation and dimming. The controller includes various protections and adjustable open-circuit protection, making it a robust solution for lighting control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 16-SOIC (0.154", 3.90mm Width) | |
| Operating Temperature | -40°C to +125°C | °C |
| Supply Voltage | 10 V to 15.6 V | V |
| Supply Current | 2 mA | mA |
| Frequency Range | 60 kHz to 120 kHz | kHz |
| Driver Current Capability | 250 mA Source, 450 mA Sink | mA |
| Switching Times | 80/40 ns Rise/Fall (with 1nF load) | ns |
| Mounting Type | Surface Mount | |
| Dimming Capability | Yes |
Key Features
- Optimized driver stage with current sensing for accurate current regulation and dimming.
- Integrated bootstrap diode, eliminating the need for an external bootstrap diode.
- High accuracy current-controlled oscillator.
- Preheat and frequency shifting timing section for proper lamp ignition.
- OP AMP for closed-loop control of lamp current during normal operation.
- CMOS shutdown input and under-voltage lockout.
- High sink/source driving current (450/250 mA typical) for fast switching times.
- Zener clamping on Vs for voltage regulation.
- Protection features including overvoltage, lamp removal, and short pulse recognition.
Applications
- High-power LED emergency lighting systems.
- Fluorescent lamp ballast applications.
- CFL (Compact Fluorescent Lamp) and TL (Tubular Lamp) drivers.
- General lighting control systems requiring preheat, dimming, and protection features.
Q & A
- What is the L6574D013TR used for?
The L6574D013TR is used as a single-channel ballast controller, particularly for high-power LED emergency lighting systems and fluorescent lamp applications.
- What is the operating temperature range of the L6574D013TR?
The operating temperature range is -40°C to +125°C.
- What is the supply voltage range for the L6574D013TR?
The supply voltage range is 10 V to 15.6 V.
- Does the L6574D013TR support dimming?
Yes, the L6574D013TR supports dimming.
- What is the frequency range of the L6574D013TR?
The frequency range is 60 kHz to 120 kHz.
- What are the key protection features of the L6574D013TR?
The device includes protections such as overvoltage, lamp removal, under-voltage lockout, and short pulse recognition.
- How does the L6574D013TR handle preheat and ignition of lamps?
The device has a dedicated timing section that allows setting the necessary parameters for proper preheat and ignition of the lamp.
- What is the role of the integrated OP AMP in the L6574D013TR?
The integrated OP AMP is used for closed-loop control of the lamp current during normal operation.
- What is the significance of the bootstrap section in the L6574D013TR?
The bootstrap section replaces an external bootstrap diode, providing the bootstrap voltage to drive the high side power MOSFET.
- Is the L6574D013TR suitable for high-voltage applications?
Yes, the device is manufactured with BCD OFF LINE technology, making it well-suited for applications with voltage ratings in excess of 600V.
